Derrick pile-driver.



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DERR|CK"'P|LE DRIVER.

(Application led Apr. 13, 189B.)

2 Sheets-Sheet l,

(N0 Model.)

ATTEST Patentd July 4, |899.

2 Sheets-Sheet 2 N SIMUNSN DERRICK PILE DRIVER.

(Application led Apr, 13, 1898.)-

(No Model.)

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UNITED STATES PATENT OFFICE.

NIELSSIMONSON, OF CLEVELAND, OIIIO.

DERRICKPIL-QRIVER.

SPECIFICATION forming part of Letters Patent No. 628,128, dated July 4, 1899.

Application iled April 13, 1898. Serial No. 677,436. (No model.) A

T0 @ZZ 1077/0777/ it 777,605/ cori/cern.'

Be it known that I, NIELS S1MONsON,a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Derrick Pile-Drivers; and I do declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to derrick pile-drivers; and the object of my invention is to provide pile-driving mechanism which in a sense is elastic and can accommodate itself to varying conditions and circumstances as they are apt to be met with in this business, so as to combine speed of operation with simplicity of parts and a very considerable saving of expense as compared with the former methods known to me.

The invention there fore consists in the construction, combination, and arrangement of parts substantially as sho-wn and described, and particularlypointed out in the claims.

In the accompanying drawings, Figure l is a perspective elevation of one form or combination of my new and improved pile-driving apparatus employed in driving what is known as sheet-pile. Fig. 2 is a plan view of the boom and its attached parts; and Fig. 3 is an elevation of the hammer and its guides and their top and bottomfsupports as seen in perspective, Fig. 1. Fig. 4 is a plain elevation of a modied combination of the invention, as hereinafter fully described.

Referring to Fig. 1, we see the invention in its simplest form and adapted to drive piles of any and every kind and to be put in operation wherever such work is to be performed. In this view what may be considered as a common scow A is shown, and in it is supported a derrick B. In the scow, out of view except partially in dotted lines, are located the engine and the necessary drums and other parts that may be required for handling the boom C and the hammer D; but as these parts are not of the invention they are not developed. y

B is a derrick having a boom C of the usual or any preferred kind, which constitutes the support or carrier for the hammer D and from which said hammer is suspended and operated. The two guide-lines 2 and 2 serve todirect the hammer and keep it steadyin its work. These lines may be cables or rods or their equivalent and are designed to be stretched tight, so as to answer practically the same purpose as would perfectly rigid guides. In this instance they are cables which pass over sheaves 3 on the boom and are engaged at one end by hooks 4 or the like to the frame E and at the other end to or with windlass F on the base of the boom, by which the engineer lor operator stretches them when engagement has been made at 4. This provides a temporary frame or guideway for the hammer, and as soon as one pile G has been driven the hooks 4 can easily be released and moved forward to the next position and there fastened `as before, when the next pile may be driven,

and so on, and it will be especially observed that all this is done Without any considerable change of position of any part and but a slight rotation 0f the derrick on its support in the usual Way. Then to accommodate'the derrick to this change of position the boom can be lowered more or less, but no considerable change is required within the range of several piles. A suitable cable 5 serves for this purpose. This adaptability of the derrick to the advancing positions of the piles without changing the position of the scow is very important in the operation of the apparatus. Practically no time at all Worth mentioning is required to change from one pile to another, and the guides 2, which serve to guide the hammer, serve also to guide the'pile, so that they perform a double function, and the pile operates to steady the cables rather than otherwise. A guide-yoke I-I engages the top of the pile with the cables 2.

The hammer D is raisedv by means of cable or line 6, which goes thence to a suitable drum or the like connected with the engine, but not shown, and any kind of a trip orrelease may be employed to give the hammer its drop. Suitable swinging gear-lines 8 for changing the position of the boom are shown.

The frame E is set where the piles are to be driven and serves as a guide for the pile, besides being available to engage the hooks 4. If desired, the said hooks can be released by lowering the boom instead of operating windlass F.

IOO

Fig. 4 shows a modification of the invention in which adaptation is effected between the boom C and a frame L, having rigid guides 9 serving in place of the flexible guide-lines 2. (Shown in Fig. l.) Otherwise the construction is the same as in Fig. l; butin this case the said frame must be moved along as each pile N is driven just as in the old constructions, which of course takes much more time than with the construction in Fig. l.

The hammer is shown in Figs. l and 3 as having ears d engaging cables or lines 2; but anysuitable engagement for the hammer may be adopted. Obviously any derrick of common construction can be readily adapted to this use and the parts are easily removed therefrom to leave it for ordinary use as before.

The frame E above referred to consists, as here shown, simply of suitable stakes or piles driven into the ground suiciently to afford the desired hold for the guide-lines 2 and of cross-piece on each side connecting their upper end and to which the hooks 4 are connected. Any equivalent or sufcient means for holding the said lines may be used.

Vhat I claim isl. The derrick-boom and the hammer suspended therefrom having ears on its sides for the guidelines, and guide -lines threaded through said ears and havingmeans at their ends to grip a securing-frame, in combination with a frame to which said lines are connected, and means to stretch said lines, substantially as described.

2. The derrick-boom having sheaves at its outer extremity, guide-lines carried by said sheaves, and means to stretch said lines, and a pile-guide adapted to engage said guidelines, substantially as described.

3. The combination of the boom and the guide-lines carried thereby, with the hammer and the pile-guiding yoke engaged on said pile-lines and means to stretch said lines, substantially as described.

4. The derrick-boom, the hammer having projections on its sides constructed to be threaded by guide-lines, and the cable suspending thc hammer over the outer end of the boom, in combination with'a pair of guidelines suspended from the end of the boom, means to secure the lower ends of said lines, and means on the derrick to stretch said lines, substantially as described.

5. The boom and a sheave on its extremity, the hammer and a cable over said sheave supporting the hammer, in combination with a pair of flexible guides for the hammer and a frame to which the ends of the guides are detachably connected, substantially as described.

6. In pile-driving mechanislna pairof hammer-guides and a pile-guide connected therewith, in combination with a hammer constructed to slide on said guides, a derrickboom and a cable suspending the hammer from the boom, substantially as described.

Witness my hand to the foregoing specification this 2d day of April, 1898.

NIELS SIMONSON.

Witnesses:

I-I. T. FISHER, R. B. MOSER. 

